557241239 has 4 divisors (see below), whose sum is σ = 557966640. Its totient is φ = 556515840.

The previous prime is 557241221. The next prime is 557241247. The reversal of 557241239 is 932142755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557241239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557241739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361547 + ... + 363084.

It is an arithmetic number, because the mean of its divisors is an integer number (139491660).

Almost surely, 2^557241239 is an apocalyptic number.

557241239 is a deficient number, since it is larger than the sum of its proper divisors (725401).

557241239 is an equidigital number, since it uses as much as digits as its factorization.

557241239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725400.

The product of its digits is 75600, while the sum is 38.

The square root of 557241239 is about 23605.9577013939. The cubic root of 557241239 is about 822.9013024935.

The spelling of 557241239 in words is "five hundred fifty-seven million, two hundred forty-one thousand, two hundred thirty-nine".